00388nam a22001457i 4500001001000000005001700010008004100027082002000068100002000088245005100108250001100159260004100170300001700211650001400228SXC00682620260819093420.0260101s1971    ii            000 0 eng d  a162 ROY-T27222  aRoy, Bhola Nath10aTextbook of deductive logic /cRoy, Bhola Nath  a27 ed.  abS C Sarkar & Sons, Calcutta,c1971  ap. ;c22 cm. 0aDeduction